September 4, 2026

SF Tensor

SF Tensor Wants to Break NVIDIA's Lock on AI Training, and They Might Be Young Enough to Pull It Off

GPU costs are the single biggest line item for most AI labs. SF Tensor claims it can cut those costs by up to 80% by automatically sourcing cheap GPUs across providers and optimizing kernels for any hardware. Three brothers, all CS graduates before turning 20, are betting that vendor lock-in is the real bottleneck in AI research.